package com.itheima.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.itheima.domain.Book;

/**
 * @author tongchen
 * @create 2022-12-20 21:15
 */
public interface IBookService  {
    public boolean save(Book book);
    public Book selectById(Integer id);
}
